After ten years and two kids together, the Oscar-winning actress and Coldplay frontman have amassed quite an empire — but what exactly is at stake if the two proceed with a divorce?

E! Online estimates that Paltrow and Martin are worth $140 million each, making their combined fortune a whopping $280 million. But reports of their wealth vary widely, with Britain's Sunday Times pegging their combined net worth at nearly $120 million in 2012.

But what is certain, is that between June 2012 and June 2013 alone, Paltrow and Martin both made Forbes' list of the 100 highest-earning celebrities. Paltrow landed at No. 71 with $10 million and Coldplay coming in at No. 14 with $64 million.

So where's all the dough coming from? Let's break it down.

Chris Martin:

"Chris Martin is clearly the bigger earner in the relationship," Dorothy Pomerantz, L.A. Bureau Chief of Forbes, told E! News, explaining: "With musicians like Coldplay it depends on touring, which is where they make the big money. So every year these guys go out on tour, they will sell out giant arenas and will make tons of money. It doesn't really come from the album sales, it comes from the touring."

Indeed, Martin has admitted that Coldplay only owns a piece of their publishing rights, while their Universal Music label owns their catalogue.

Martin confirmed to Howard Stern during a 2011 interview, "No, we don't own hardly any of it…You'll have to talk to my manager, but we don't own it for at least 20 years or something."

"We own quite a lot of the publishing but we don't own much of the recording," he continued. "That's why people always think bands are a lot richer than they are because they never remember that bit."

But out of anyone in the band, Martin doesn't have to worry, as he told Stern that the four members split their earnings "20-20-20-40," with the largest share going to him as lead singer-songwriter.

That breakdown fares well for Martin, whose band sold more than 60 million albums worldwide and whose last 2012 "Mylo Xyloto" concert tour grossed more than $170 million, according to The New York Times.

Gwyneth Paltrow:

According to Bloomberg Businessweek, Paltrow's films have grossed more than $3.9 billion worldwide. "Iron Man" alone accounts for $1.2 billion of that figure.

"When you are in a movie like 'Iron Man,' even if you are not the star and it makes so much money you get some of that back end," explains Forbes' Dorothy Pomerantz. "She is not getting Robert Downey Jr. money but she still gets a taste of it. She gets money from GOOP, she gets money from her cookbooks and her TV work...She has money coming from several different sources now, because she really is a brand and when you put it all together, it is around $10 million."

In addition to Paltrow's 150,000 Goop subscribers and her newest cookbook, 2013's "It's All Good" debuting at No. 1 on the New York Times bestseller list, the 41-year-old also boasts lucrative endorsement deals.

In 2008 alone — the year she became a face of Estée Lauder and the first "Iron Man" came out — Forbes estimated she made $25 million those 12 months alone.

Real Estate:

With her hailing from Los Angeles and Manhattan and he from London, the couple's real estate portfolio currently consists of five properties around the world: "a home in L.A.'s Brentwood neighborhood, a Manhattan apartment, a Hamptons estate, and a mansion in London's upscale Belsize Park neighborhood, which they bought from Kate Winslet in 2004. Additionally, they purchased the property next door and combined the two into a single large estate," according to People.

Earlier this month, the Los Angeles Times reported the couple paid $14 million for a Malibu home, which will now reportedly be used as Martin's "bachelor pad."

While the couple likely have a prenuptial agreement, if not, California — the state in which they were married — is a community property state, meaning marital property is divided in half in the event of a divorce.